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A loop is kept so that its center lies a...

A loop is kept so that its center lies at the origin of the coordinate system. A magnetic field has the induction `B` pointing along `Z` axis as shown in the figure

A

No EMF and current will be induced in the loop if it rotates about Z-axis

B

EMF is induced but no current flow sif the loop is a fiber when it rotates about Y-axis.

C

EMF is indued and induced current flows in the loop if the loop is made of copper `&` is rotated about Y-axis.

D

If the loop moves along Z-axis with constant velocity, no current flows in it.

Text Solution

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The correct Answer is:
A, B, C
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Knowledge Check

  • A loop is kept so that its center lies at the origin of the pointing along Z -axis as shown in the figure

    A
    No emf and current will be induced in the loop if it rotates about Z-axis
    B
    emf is induced but no current flows if the loop is a fiber when it rotates about y-axis.
    C
    emf is induced and induced current flows in the loop if the loop is made of copper & is rotated about y -axis
    D
    If the loop moves along Z axis with constant velocity no current flows in it.

  • A conducting loop of resistance R and radius r has its centre at the origin of the coordinate system in a magnetic field B, When it is rotated about y-axis through 90^(@) , net charge flown in the loop is directly proportional to -

    A
    `B^(-1)`
    B
    `R`
    C
    `r^(2)`
    D
    `r`

  • A rectangular loop of wire is oriented with the left corner at the origin, one edge along X-axis and the other edge along Y-axis as shown in the figure. A magnetic field is into the page and has a magnitude that is given by beta=alphay where alpha is constant. Find the total magnetic force on the loop if it carries carrent i.

    A
    `vecF=alphaa^(2)ihati`
    B
    `vecF=alphaa^(2)ihatj`
    C
    `vecF=2alphaa^(2)ihati`
    D
    `vecF=2alphaa^(2)ihatj`

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